Cultivator



v Aug- 1929- A. w. REYNOLDS 1,723,075

CULTIYATOR Filed May 14, 1927 Fig 1 a i 6 l 6 INVENTOR. L 5 I r 30' 1flrZ/zar W/Peynolda BY gimme" L ATTORNEYS.

Patented Aug. 6, 1929.

UNITED STATES PATENT OFFICE.

CULTIVATOR.

Application filed May 14, 1927. Serial No. 191,325.

My invention refers to new and useful improvements in cultivators of thetype used for tilling soil, with relation to and more particularlybetween rows of growing plants, and has for its object to simplify andcheapen the cost of constructing certain parts, thus simplifying theassembling and cost of producing the cultivator.

The invention further and more particularly relates to what iscommercially known as a walking cultivator, which includes a leverspread for adjusting the side beams carrying the side teeth.

The object of the invention is to provide a one piece yoke or hingemember for attachment to the center beam and to which the forward endsof the hinged side beams are hingedly attached. Yokes or hinge membersfor this purpose have heretofore been made of several parts whichrequired to be assembled and attached to the beam in a way to costconsiderable more than the form of yoke herein to be described.

1V ith these and other objects in view, the invention resides andconsists in the construction and novel combination and arrangement ofparts hereinafter more fully described, illustrated in the accompanyingdrawings, and pointed out in the claims hereto appended, it beingunderstood that various changes in the form, proportion, size, and minordetails of construction within the scope of the claims may be resortedto without departure from the spirit, or sacrificing any of theadvantages of the invention.

Similar characters of reference denote like or corresponding partsthroughout the several Figures of the accompanying drawing forming apart of this specification and upon which Fig. 1 shows a perspectiveview of a mod ern commercial type of five toothed, lever spread, plainwalking cultivator.

Fig. 2 shows an enlarged perspective view of my improved form of yokeused in the make-up of the cultivator shown in Fig. 1.

Fig. 3 shows an enlarged plan view of the yoke as applied to the centercultivator beam and having forward end portions of side beams hingedlyattached thereto.

Fig. 4 shows a sectional elevation taken on line H of Fig. 3.

Fig. 5 is a sectional elevation somewhat like Fig. 3 but with bolts andside beams removed; and

Fig. 6 shows a side elevation of center beam with yoke carrying pivotalbolts attached.

As before explained I have shown in Fig. 1 of the drawing a perspectiveview of a complete five tooth, lever spread, walking cultivator which Iwill now refer to by reference characters in the further description ofthe cultivator and my invention as applied thereto.

In the drawings:

8 represents the forward end of the center beam of the cultivator whichcarries a hook 9 to which a whifile tree may be attached. The centerbeam extends longitudinally through the center portion of the cultivatorand has a shank 10 attached to its rear end, to carry a cultivatortooth. Upon the forward end of this center beam is a yoke 11 to whichthe side beams 12 12 are hingedly connected. These side beams like thecenter beam, each have shanks 13 attached thereto for the support of acultivator tooth.

A shank 14 is attached to the forward end portion of each of these sidebeams, and likewise each carries a cultivator tooth. Provision is alsomade for the attachment of an additional shank and cultivator tooth toeach of the side beams if desired as is apparent by reference to thehole 15 in said side beams. 16 represents handle members, usually madeof wood, the lower end of which are secured as at 17 to the center beam.These handle members are further each provided with a brace 18, one endof which is attached to the intermediate portion of the handle and theother ends to the center beam.

A link 19 is hingedly connected to a bolt 20 secured in the upper endportion of each handle. The lower end of these links are pivotallyconnected as at 21 to a horizontally disposed link 22. There being twoof said links 19 and two of the horizontal links 22, the latter havingtheir inner ends connected to a slide 23 slidably mounted upon thecenter beam, and their outer ends pivotally connected to the rear endportion of the side beams 12 12, said side beams being adapted to bedrawn in toward, or spread away from the center beam by means of asliding movement of the slide 23 on the center beam. This slidingmovement of the slide which s'itlebeani-s in their serves to contractand spread the side beams is effected through an operating handle 2%pivotally connected to the center ocean at and operatively' connectedwith the said slide by a link 26, one end of which link is pivotal-lyconnected to the lever and the other end similarly connected to theslide.

A toothed segment 2; secured to the cenactuated ter beam, together witha spring and mapawl carried by the operating lever nipulated by thetrigger 28, serves to hold tail, -coinprises the essential feature of mypresent invention, and of vast importance, since it works out toadvantage in practice cheapo-11sthe cost of: producing a cultivator ofthis sort.

This yolaie is obviously designed for permanent attachment to the centerbeam 8 of the cultivator and while it is possible to secure it invarious ways, I have shown and pre'ier to: employ the simple formillustrated in the drawings; The yoke so-called, is made of one piece,preferably blanked and shaped troinsheetmetal and as will be seen,comprisinga housing adapted to to in a front p I end portion a, a. topplate member?) and a bottom plate member 0. membersbeing in practice,disposed l10i'i-' The two said plate zontally and crosswise of the upperand lower edges respectively of the centerbeain.

The yoke further includes a centr .l opening (Z in the front portion awhich is or proper size and shapeto receive the center btitlll which inpractice extends through the opening, When ma e oi sheet metal, as is mypreference, the yokes rnay conveniently be attached to the center beam8, by punching in. one o" more tits 0 lower plates Z) and 0 altethe yokehas been positioned in the center beam and in align j inent with the topand bo tom edges o1 the center beam as shown in filgs. 1, and 5, so thatthe portions 6 of metal will be positioned in the previously "formedholes in said beam in a way to secure the yoke to the beam with thesetting of thenuts on the bolts.

Figs. 3 and 4:, the punched tits 0 are positioned on either side of, andadjacent to the top edge of the beam so that the metal is forced againstthe corners or" the top edge of'the bean'i a way to secure the yoke inposition upon the beam.

This yoke further .incuides two pairs of aligned holes (p-g tor thesupport of. pivotal bollts'29, located in spaced relation to the centerbean and' each other. Each of said bolts 1 4-, a menu ililct from theUpper provided with a sleeve 30 positioned between the upper and lowerplate member 3) and cand throu' h which said bolts These sleeves termpivotal bearings that extend through the eye 31 ot the side bea nlitort-heir hinged eonnectiontothe yoke. In this connection it will benoted that the length of these bearings is slightly more than that ofthe height of the side beams so as to insure clearance and freeinovci'nent oi eyes theside bean-is upon their pivots and between theupper and lowe" -slate In the asseinbi"1g otthe parts at 'ch d to hebolts 29 when securely a the upper and low inc-nithe ends ened er V i- 1beis 01 the yoke up t1 I T .1. the sleeve, thus ole no u '1 w a wltl t esJOit/S ic.-

s e yoke. lily improve rei'n'i yorze constructed 7 n A] m and heroine redescribes, coin t .1 4- "L i n- T, cling c113 c-Wo bolts tuiti. the nuinmy invention, what T '1, I M 4 "v a a T): i clan and desire to secuie byLUtLGLQ i atl rent is.

"ha ineans nitegrii f it to said bean'r.

2. The combination with a oi a you iorn'ied of a singl and inclh" anopening to t the beam, and means integral with age the. barn, to securecuitrvato no A the two to Fla is. g;

beam, and inciuding aligned holes in posite pie portions of the yoke,sleeves positioned between. raid portions 5, bolts. pes cloned alignzneawith the bed to secure J. in the ho es sleeves, in a way the saidf'oposits plate portions c the yoke ends of the sleeves, andside e yconnecced to said sleeves.

p against tee beamshing dl Signed Bridgeport, in the county of Fairtieldand State of Connecticut, this 7thday of May rif I921.

A'tTHUIt w; aura-ones.

